3) there is a stretch of 4 you move right 12 on the x axis and up 2 on the y
4
表达式5: "k" left parenthesis, "x" , right parenthesis equals StartRoot, 3 "x" minus 9 , EndRoot plus 2kx=3x−9+2
5
表达式6: "p" left parenthesis, "x" , right parenthesis equals left parenthesis, "x" minus 5 , right parenthesis cubed plus 6 left brace, 5 less than or equal to "x" less than or equal to 10 , right bracepx=x−53+65≤x≤10
